Liquid cooler



July 14, 1925. 1,545,893.

J. GREGORY LIQUID COOLER Filed sept.` 1e. 1924 Patented July 14, 1925,

UNITED ,STATES varietur OFFICE.

JAMES' GREGORY, OF CATTARAUGUS, NEW YORK, ASSIGNOR TO OAKES & BURGER CO., .A CORPORATION F NEW VYORK.

LIQUID Application led September To all fwhomtz't may concern.:

Be it known that I, JAMES GREGORY, a citizen of the United States, residing at Cattaraugus, in the county of Cattaraugus and State of New York, have invented or discovered certain new and useful Improvements in Liquid Coolers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a. trickler cooler for milk and other` liquids, and has for its object to provide a device of this class which will be strong and inexpensive in construction, and which will be quite as efficient and much less expensive than a tube coolei', and will have all the advantages of a tube cooler in that it will be suiiiciently strong to resist a high internal water pressure. To this end the improved cooler comprises con' rugatcd sheet metal sides with theinward and outward bends of the corrugations registering with each other, so that the contiguous inward bends may be soldered together to form tubular passages. The metal at the alternate inward bends is slitted at the ends of the tubular parts and the slitted parts bent away from each other so as to afford, atthe alternate ends of the cooler, passages for the cooling liquid which, if introduced at the lower tubular part will travel upward at one end of the cooler into the next higher tubular part and at the opposite end of the latter will travel upward into the tubular part above, and so on through the entire series of tubular passageways until the cooling liquid will pass outward from the top tubular part, as will be hereinafter more fully set forth.

In the accompanying drawing Fig. 1 is an elevation of the improved cooler. Fig. 2 is a central vertical longitudinal section of the saine. Fig. 3 is a transverse section of the same on line 3 3, Fig. 1. Fig. 4 is a horizontal section on line 4- 4, Fig. 1, and Fig. 5 is an end view of the cooler with one of the end plates removed and with the reinforcing plates for the passageway portions omitted.

Referring to the drawing, each of the side walls of the improved cooler consists of a metallic corrugated plate 12, preferably of copper, with the outward. and inward bends of the corrugations registering with each other to form closed tubular passageways.

In constructing the improved cooler twp COOLER.l

16, 1924. Serial No. 738,097.

corrugated sheets of metal (preferably copper) joined together at one, end may be einployed, or a corrugated sheet metal plate of suitable width and length may be folded at its middle with the bends of the corrugations extending outward away from each other and the inward bends brought together and secured by solder, as at 13, the parts of the corrugated sheet being bent away from' each other to permit ofthe soldering operation, and then be brought together at the next inward bends above, and again soldered, and so on up'ward until a cooler of a suitable heightis formed. The alternate inward bends of the corrugations are slitted inwardly from their endsl for a short distance, and will then lhe bent inward and overlapped, these overlapped portions 14 being mostA clearly shown in Fig. 5. These bent and overlapped portions are preferably covered by reinforcing plates 15 to strengthen the joints at these points.

After the joint at the inward bends at the top of the cooler has been properly closed by solder, or otherwise the cooler is completed by end plates 16 which are preferably constructed with side flanges 17 slightly overlapping the-ends of the corrugated tubular parts formed as above described; these end plates being soldered to the ends of the corrugated plates to form tight joints. The folded reinforcing plates 15 are inwardly tapering or of V-shape on the outsides of the cooler so as to fit on the troughs between the outward bends of the corrugated plates, as more clearly shown in Fig. 4,

thereby affording a finish without sharp corners, so that these parts may be easily cleaned; and between these reinforcing plates at each end of the cooler are also inserted other inwardly tapering or V-shaped plates 15 so that a proper finish at both ends of the cooler will be afforded. These plates 15 and 15a are preferably soldered in place.

The outward bends of the corrugated plates afford circulation tubesfor the cooling liquid which may be admitted through a pipe 18 to the lowermost tube and will then pass upward into the next higher tube at the opposite end of the cooler, and going from this next higher tube will pass to the next tube above, the cooling liquid thus flowing back and forth through the tubes afforded by the corrugations as it circulates upward, until it passes through the uppermost tube and outward through a discharge pipe 19. Of course this circulation may be reversed, if desired, the cooling liquid entering the pipe 19 and being discharged through the pipe 18.

Owin tothe fact that the corrugated which will withstand a very high water pres-i sure, is afforded. As the improved cooler will, as just stated, withstand a. high liquid pressure the circulation of the water or other cooling liquid back and forth in the tubular members of the cooler may be rapid and positive, so that the improved cooler has a very high efficiency,- as has been demonstrated in practice.

In practice the cooler will be placed above a suitable tank or receptacle to receive the cooled milk or other liquid which will be fed to the cooler from a suitable perforated feed trough'or receptacle above, these receptacles, however, forming no part of the present invention.

Having thus described my invention I claim and desire to secure by Letters Patent:

1. A liquid cooler comprising corrugated side walls with the inward bends of the corrugations permanently attached together, to afford tubularpassages, and with the alternate inward bends Constructed to afford alternate passages at the opposite ends of the cooler, combined with end plates attached to the corrugated side walls of the cooler and tightly closing the ends of the said tubular passages.

2. A liquid coolercomprising corrugated side walls with the inward bends of the corrugations permanently attached together, to afford tubular passages, and with the alternate inward bends slitted at their ends and turned inward and overlapped, to afford alternate liquid passages at the opposite ends of the cooler, combined with end plates attached to the corrugated side walls of the cooler and tightly closing the ends of the said tubular passages.

3. A liquid cooler comprising corrugated side walls with the inward bends of the corrugations permanently attached together, to afford tubular passages, and with the alternate inward bends slitted at their ends and turned inward and overlapped, to afford alternate liquid passages at the opposite ends of the cooler, combined with end plates attached to the corrugated side walls of the cooler and tightly closing the ends of the tubular passages afforded by the outward bends of the corrugations, folded reinforcing members covering the inturned and overlapped parts on the insides of the cooler and inwardly tapered on the outsides of the cooler so as to fit between the troughs afforded by the outward bends of the corrugations.

4. A liquid cooler comprising corrugated side walls, with the inward bends of the corrugations permanently attached together, to afford tubular passages, and with the alternate inward bends slitted at their ends and turned inward and overlapped, to afford alternate liquid passages at the opposite ends of the cooler, `combined with end plates attached to the corrugated side walls of the cooler and tightly closing the ends of the said tubular passages afforded by tho outward bends of the corrugations, folded reinforcing members covering the inturned and overlapped parts of the insides on the cooler so as to fit between the troughs afforded by the outward bends of the corruga tions, and other inwardly tapered plates at the ends of the troughs not finished by the said folded reinforcing plates.

5. A liquid cooler comprising horizontal tubular members extending from end to end of the cooler, pairs of said tubular members being slitted at their ends and the slitted parts being overlapped, thus affording alternating connecting liquid passages at the opposite ends of the cooler, combined with end members fitting against the ends of said tubular members to close the ends of the latter excepting for the said alternating connecting liquid passages.

In testimony whereof I affix my signature.

JAMES GREGORY.. 

